CN113102664A - Cold heading forming device and forming method of thin-wall hollow positioning pin - Google Patents
Cold heading forming device and forming method of thin-wall hollow positioning pin Download PDFInfo
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- CN113102664A CN113102664A CN202110344945.5A CN202110344945A CN113102664A CN 113102664 A CN113102664 A CN 113102664A CN 202110344945 A CN202110344945 A CN 202110344945A CN 113102664 A CN113102664 A CN 113102664A
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- forging stock
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 239
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 83
- 239000010959 steel Substances 0.000 claims abstract description 83
- 238000005242 forging Methods 0.000 claims abstract description 80
- 238000004140 cleaning Methods 0.000 claims abstract description 72
- 239000002184 metal Substances 0.000 claims abstract description 60
- 239000000843 powder Substances 0.000 claims abstract description 58
- 238000005491 wire drawing Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000010687 lubricating oil Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 8
- 238000005299 abrasion Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000007127 saponification reaction Methods 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/12—Upsetting; Forming heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/20—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 from wire of indefinite length
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a cold heading forming device and a forming method of a thin-wall hollow positioning pin, and the device comprises a cold heading machine, a powder removing box, a steel pipe, a dust removing sleeve, a dust collecting pipe and a metal rod, wherein the powder removing box is assembled at the feed end of the cold heading machine through a bolt, the top in the powder removing box is separated into a cleaning chamber through steel plate welding, the metal rod is positioned at the bottom in the cleaning chamber, the dust collecting pipe is arranged at the top in the cleaning chamber, the dust removing sleeve is sequentially arranged in the cleaning chamber, and one end of the dust removing sleeve is provided with a plug. Can carry out the preliminary treatment to the forging stock surface of thin wall hollow locating pin, make the forging stock better in the shaping effect that carries out cold-heading man-hour, can effectively carry out the brushwork to the metal dust that forging stock wire rod surface wire drawing produced and the foreign matter that glues, and then guaranteed that the forging stock spare can not cause great pollution to lubricating oil when will cold-heading, make the reuse's of lubricating oil number of times improve greatly, realized good saving effect, greatly reduced's the cost of processing.
Description
Technical Field
The invention belongs to the technical field of cold heading, and particularly relates to a cold heading forming device and a forming method of a thin-wall hollow positioning pin.
Background
The cold heading is a forging method for upsetting (usually local upsetting) and forming a metal bar by using a die at normal temperature. The heads, which are commonly used to make screws, bolts, rivets, etc., may be used in addition to or instead of machining.
In the cold-heading forming process of the positioning pin, personnel need to frequently change the lubricating oil for the cold-heading process and frequently change and maintain the cold-heading die, and a forging blank rod for the cold heading is formed by gradually drawing and thinning a thick rod, so that a large amount of metal powder is adhered to the surface of the blank due to friction, the powder causes great pollution and abrasion to the lubricating oil and the die, and the processing cost is greatly improved.
Disclosure of Invention
The invention aims to provide a cold heading forming device and a forming method of a thin-wall hollow positioning pin, which can be used for pretreating the surface of a forging stock of the thin-wall hollow positioning pin, so that the forming effect of the forging stock during cold heading processing is better, and metal dust and adhered foreign matters generated by wire drawing on the surface of a forging stock wire can be effectively cleaned, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cold heading forming device of a thin-wall hollow positioning pin comprises a cold heading machine, a powder removing box, a steel pipe, a dust removing sleeve, a dust collecting pipe and a metal rod, the powder removing box is assembled at the feed end of the cold header through bolts, the top in the powder removing box is separated by a cleaning chamber through steel plate welding, the metal rod is positioned at the bottom in the cleaning chamber, the dust collecting pipe is arranged at the top in the cleaning chamber, the cleaning chamber is sequentially provided with a dust removing sleeve, one end of the dust removing sleeve is provided with a plug-in connector, the dust removing sleeve is connected with one end of the steel pipe in a plug-in manner through the plug-in connector, one end of the steel pipe and the plug are respectively provided with a corresponding first bolt hole, the steel pipe is connected with the first bolt hole of the plug through a bolt, the other end in the dust removal cover has seted up and has changed the groove, it is equipped with the inner skleeve to change the inslot interpolation, the inner skleeve inner wall is equipped with annular steel brush through the bolt nail.
Further, the dust collecting pipe passes through bolt and scrubbing room erection joint, U type dust absorption pipe welded connection and dust collecting pipe bottom respectively, the dust inlet hole has been seted up to the inboard distribution of U type dust absorption pipe, the quantity of U type dust absorption pipe is corresponding with the quantity of dust removal cover, the discharge end of dust removal cover is laid to U type dust absorption pipe, and through the U type form of U type dust absorption pipe, can make forging stock wire rod can be good pass in the U type dust absorption pipe for the dust inlet hole of U type dust absorption inside pipe wall can carry out good dust absorption to it and handle.
Furthermore, the dust collector is installed at the bottom in the powder removing box through a bolt, a dust suction pipe is connected to the dust inlet end of the dust collector, and a cleaning chamber is arranged at the bottom of the dust suction pipe in a penetrating mode and is connected with one side of the dust collecting pipe through a flange.
Furthermore, a first bearing is sleeved and welded on the periphery of the other end of the steel pipe, supporting plates corresponding to the steel pipe are welded on the bottom of the cleaning chamber in sequence, an outer shaft sleeve of the first bearing is inserted into and welded with the supporting plates, a first gear sleeve is sleeved and welded on the periphery of one end of the dust removing sleeve, the metal rod is inserted into the bottom of the supporting plates in sequence, second bearings corresponding to the supporting plates are sleeved on the periphery of the metal rod respectively, an inner shaft sleeve of each second bearing is welded with the corresponding metal rod, an outer shaft sleeve of each second bearing is welded with the corresponding supporting plate, second gear sleeves corresponding to the first gear sleeves are distributed and sleeved on the metal rod in a welding mode, and the first gear sleeves are connected with the second gear sleeves in a sleeved mode through chains; the second bearing can help the metal rod rotate smoothly at the bottom of the support plate, and the first bearing can help the steel pipe rotate smoothly at the top of the support plate.
Furthermore, a motor is installed in the powder removing box and located at the bottom of the cleaning chamber through bolts, corresponding gear shafts are welded at one end of the metal rod and the driving end of the motor, and the metal rod and the gear shafts of the motor are connected through a synchronous belt in a sleeved mode; the synchronous belt can drive the metal rod and the gear shaft of the motor to synchronously rotate.
Furthermore, corresponding second bolt holes are distributed in one end of the replacement groove and the inner sleeve, and the inner sleeve is connected with the second bolt holes of the replacement groove through bolts; through the setting of second bolt hole, can help personnel to carry out nimble bolt dismantlement between interior sleeve and the change groove and wear to join in marriage, help the better equipment of personnel.
Furthermore, an access cover corresponding to the cleaning chamber is mounted at the top of the powder removing box through a hinge, a sealing strip is glued at the joint of the access cover and the cover, and material penetrating holes are respectively formed in two ends of the cleaning chamber of the powder removing box in a penetrating mode; the access cover is convenient for personnel to open, overhaul and maintain the cleaning chamber of the powder removing box.
A forming method of a cold heading forming device of a thin-wall hollow positioning pin is characterized in that: the method comprises the following processing steps:
the method comprises the following steps: taking a forging stock wire material required by processing a thin-wall hollow positioning pin, inserting the forging stock wire material into a cleaning chamber of a powder removing box through a material penetrating hole, sequentially passing through an annular steel wire brush and a U-shaped dust suction pipe in a dust removing sleeve, and cleaning the forging stock passing through the dust removing sleeve by friction through the annular steel wire brush;
step two: selecting a dust removal sleeve with the inner diameter corresponding to the forging stock wire, inserting the inserting head of the dust removal sleeve into one end of the steel pipe, and installing and fixing the inserting head and a first bolt hole of the steel pipe through a bolt;
step three: the motor is started, the gear shaft of the motor drives the synchronous belt to transmit, so that the gear shaft of the metal rod connected with the synchronous belt synchronously rotates, the chain sleeved on the second gear sleeve of the metal rod drives the first gear sleeve of the dust removal sleeve to rotate, so that the first gear sleeve rotates along with the gear shaft, after the dust removal sleeve rotates, the annular steel wire brush in the inner sleeve in the dust removal sleeve can effectively brush forging stock wires passing through the dust removal sleeve, so that wire drawing powder, saponification powder, foreign matters and the like generated by wire drawing on the surfaces of the forging stock wires are brushed off, and the rotation of the inner sleeve is utilized to brush the surfaces of the passing wires by 360 degrees;
step four: after the annular steel wire brush is used for brushing the forging stock wires of 1000-2000m, the inner sleeve in the dust removing sleeve is disassembled, and the inner sleeve with a new annular steel wire brush is replaced, so that the inside of the dust removing sleeve can keep a good brushing effect;
step five: when the annular steel wire brush starts to clean, the dust collector is started to work, and the dust collector exhausts the dust collecting pipe through the dust exhaust pipe, so that the dust collecting pipe exhausts the U-shaped dust collecting pipe, and the dust inlet hole of the U-shaped dust collecting pipe can effectively suck the surface of the wire rod which is cleaned and exhausted in the dust collecting sleeve and dust generated by cleaning, so that the surface of the forging stock wire rod is kept clean, the pollution to lubricating oil in the forging stock wire rod processing process is reduced, and the abrasion to a cold heading die is reduced;
step six: and (3) guiding the powder removing box and the processed forging stock wire rod into a cold header, and sequentially carrying out blanking, heading, accumulating, forming, chamfering, thread rolling, reducing and trimming on the forging stock through the cold header to obtain the high-quality thin-wall hollow positioning pin.
Compared with the prior art, the invention has the beneficial effects that:
1. the method is stable and efficient to use, can pretreat the surface of the forging stock of the thin-wall hollow positioning pin, enables the forming effect of the forging stock during cold heading processing to be better, can effectively clean metal dust and adhered foreign matters generated by wire drawing on the surface of a forging stock wire rod, further ensures that the forging stock does not cause great pollution to lubricating oil when the forging stock is subjected to cold heading, greatly improves the reusability of the lubricating oil, realizes good saving effect, and greatly reduces the processing cost.
2. Through the powder mechanism that inhales that U type dust absorption pipe, dust-collecting tube and dust catcher are constituteed, can effectively absorb the dust and the foreign matter that produce to the forging stock surface scrubbing, can effectively reduce the friction of forging stock to the cold-heading mould, increase mould life, the maintenance cost of reduction personnel to the cold-heading machine has realized good energy-conserving effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a cold heading forming device and a forming method of a thin-wall hollow positioning pin according to the invention.
FIG. 2 is a structural schematic diagram of a cold heading forming device of a thin-wall hollow positioning pin and a cold heading machine of a forming method thereof.
FIG. 3 is a schematic structural diagram of a cross section of a powder removing box of the cold heading forming device and the forming method of the thin-wall hollow positioning pin.
FIG. 4 is an enlarged schematic view of FIG. 3A of the cold heading forming device and the forming method of the thin-wall hollow positioning pin according to the present invention.
FIG. 5 is a schematic structural diagram of a support plate of the cold heading forming device and the forming method of the thin-wall hollow positioning pin according to the invention.
FIG. 6 is a schematic view of a dust-removing cover of the cold heading forming device and the forming method of the thin-wall hollow positioning pin of the invention.
FIG. 7 is a schematic structural diagram of a U-shaped dust absorption tube in a main view, wherein the U-shaped dust absorption tube is used for forming the thin-wall hollow positioning pin by cold heading.
In the figure: 1. a cold header; 2. a powder removing box; 3. a support plate; 4. a steel pipe; 5. a first bearing; 6. a dust removal sleeve; 7. a plug-in connector; 8. an inner sleeve; 9. replacing the groove; 10. an annular wire brush; 11. a second bolt hole; 12. a first bolt hole; 13. a first gear sleeve; 14. a metal rod; 15. a second gear sleeve; 16. a gear shaft; 17. a synchronous belt; 18. a dust collecting pipe; 19. a U-shaped dust collection pipe; 20. a vacuum cleaner; 21. a motor; 22. a dust extraction pipe; 23. a dust inlet hole; 24. a cleaning chamber; 25. an access cover; 26. a second bearing; 27. a material penetrating hole; 28. and a chain.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-7, a cold heading forming device for a thin-wall hollow positioning pin comprises a cold heading machine 1 and a powder removing box 2, and further comprises a steel pipe 4, a dust removing sleeve 6, a dust collecting pipe 18 and a metal rod 14, wherein the powder removing box 2 is assembled at the feed end of the cold heading machine 1 through bolts, the top of the powder removing box 2 is separated into a cleaning chamber 24 through steel plate welding, the metal rod 14 is positioned at the bottom of the cleaning chamber 24, the dust collecting pipe 18 is arranged at the top of the cleaning chamber 24, the dust removing sleeve 6 is sequentially arranged in the cleaning chamber 24, one end of the dust removing sleeve 6 is provided with a plug 7, the dust removing sleeve 6 is connected with one end of the steel pipe 4 through the plug 7 in an inserting manner, one end of the steel pipe 4 and the plug 7 are both provided with corresponding first bolt holes 12, the steel pipe 4 is connected with the first bolt holes 12 of the plug 7 through bolt mounting, the other end of the dust removing sleeve 6 is provided with a replacing groove 9, an inner sleeve 8 is inserted into the replacement groove 9, and the inner wall of the inner sleeve 8 is provided with an annular steel wire brush 10 through bolt nails.
The dust collecting pipe 18 is connected with the cleaning chamber 24 through a bolt in an installing mode, the U-shaped dust collecting pipes 19 are respectively connected with the bottoms of the dust collecting pipes 18 in a welding mode, dust inlet holes 23 are formed in the inner sides of the U-shaped dust collecting pipes 19 in a distributed mode, the number of the U-shaped dust collecting pipes 19 corresponds to the number of the dust removing sleeves 6, the U-shaped dust collecting pipes 19 are arranged at the discharge ends of the dust removing sleeves 6, through the U-shaped shapes of the U-shaped dust collecting pipes 19, forged blank wires can well penetrate through the U-shaped dust collecting pipes 19, and good dust collecting processing can be conducted on the dust inlet holes 23 in the inner walls of the U-shaped dust collecting pipes 19.
The dust removing box 2 is characterized in that a dust collector 20 is mounted at the bottom in the dust removing box 2 through bolts, a dust suction pipe 22 is connected to a dust inlet end of the dust collector 20, and a cleaning chamber 24 is arranged at the bottom of the dust suction pipe 22 in a penetrating mode and is connected with one side of the dust collecting pipe 18 through a flange in an installing mode.
The cleaning device comprises a cleaning chamber 24, a metal rod 14, first bearings 5, second bearings 26, first tooth sleeves 13, second gear sleeves 15, first chains 28 and a chain, wherein the first bearings 5 are sleeved and welded on the periphery of the other ends of the steel tubes 4, the supporting plates 3 corresponding to the steel tubes 4 are welded on the bottom of the cleaning chamber 24 in sequence, the outer shaft sleeves of the first bearings 5 are inserted and welded with the supporting plates 3, the first tooth sleeves 13 are sleeved and welded on the periphery of one end of the dust removing sleeve 6, the metal rod 14 is inserted on the bottom of the supporting plates 3 in sequence, the second bearings 26 corresponding to the supporting plates 3 are sleeved on the periphery of the metal rod 14 respectively, the inner shaft sleeves of the second bearings 26 are welded with the metal rod 14, the outer shaft sleeves of the second bearings 26 are welded with the supporting plates 3 at corresponding positions, the second tooth sleeves 15 corresponding to the first tooth sleeves 13 are sleeved and welded; the second bearing 26 may facilitate the smooth rotation of the metal rod 14 at the bottom of the support plate 3, and the first bearing 5 may facilitate the smooth rotation of the steel pipe 4 at the top of the support plate 3.
A motor 21 is installed in the powder removing box 2 and at the bottom of the cleaning chamber 24 through a bolt, corresponding toothed shafts 16 are welded at one end of the metal rod 14 and the driving end of the motor 21, and the metal rod 14 and the toothed shafts 16 of the motor 21 are connected in a sleeved mode through a synchronous belt 17; the timing belt 17 can drive the metal rod 14 and the gear shaft 16 of the motor 21 to synchronously rotate.
Corresponding second bolt holes 11 are distributed in one end of the replacement groove 9 and the inner sleeve 8, and the inner sleeve 8 is connected with the second bolt holes 11 of the replacement groove 9 through bolts; through the setting of second bolt hole 11, can help personnel to carry out nimble bolt dismantlement between inner sleeve 8 and the change groove 9 and wear to join in marriage, help the better equipment of personnel.
An access cover 25 corresponding to the cleaning chamber 24 is mounted at the top of the powder removing box 2 through a hinge, a sealing strip is glued at the covering position of the access cover 25, and material penetrating holes 27 are respectively formed in two ends of the cleaning chamber 24 of the powder removing box 2 in a penetrating mode; the access cover 25 is convenient for personnel to open the cleaning chamber 24 of the powder removing box 2 for maintenance.
A forming method of a cold heading forming device of a thin-wall hollow positioning pin is characterized in that: the method comprises the following processing steps:
the method comprises the following steps: taking a forging stock wire material required by processing the thin-wall hollow positioning pin, firstly inserting the forging stock wire material into a cleaning chamber 24 of the powder removing box 2 through a material penetrating hole 27, sequentially passing through an annular steel wire brush 10 and a U-shaped dust suction pipe 19 in a dust removing sleeve 6, and cleaning the forging stock passing through the dust removing sleeve 6 through friction by the annular steel wire brush 10;
step two: selecting a dust removal sleeve 6 with the inner diameter corresponding to the forging stock wire rod to be processed, inserting a plug-in connector 7 of the dust removal sleeve 6 into one end of the steel pipe 4, and installing and fixing the plug-in connector 7 and a first bolt hole 12 of the steel pipe 4 through a bolt;
step three: the motor 21 is started, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 is driven to rotate by the rotation of the gear shaft 16 of the motor 21, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 rotates synchronously, the first gear sleeve 13 of the dust removing sleeve 6 is driven to rotate by the chain 28 sleeved on the second gear sleeve 15 of the metal rod 14, so that the first gear sleeve 13 rotates along with the first gear sleeve, after the dust removing sleeve 6 rotates, the annular steel wire brush 10 in the inner sleeve 8 in the dust removing sleeve 6 can effectively brush the forging blank wire passing through the dust removing sleeve 6, so that the wire drawing powder, the saponification powder, foreign matters and the like generated by the wire drawing on the surface of the forging blank wire can be brushed, and the annular steel wire brush 10 can brush the surface of the passing wire in 360 degrees by the rotation of the inner sleeve 8;
step four: after the annular steel wire brush 10 cleans forging stock wires of 1000m, the inner sleeve 8 in the dust removing sleeve 6 is disassembled, and the inner sleeve 8 with a new annular steel wire brush 10 is replaced, so that the inside of the dust removing sleeve 6 can keep a good cleaning effect;
step five: when the annular steel wire brush 10 starts to be cleaned, the dust collector 20 is started to work, the dust collector 20 exhausts the dust collecting pipe 18 through the dust exhausting pipe 22, so that the dust collecting pipe 18 exhausts the U-shaped dust collecting pipe 19, and the dust inlet hole 23 of the U-shaped dust collecting pipe 19 can effectively suck the surface of the wire rod which is cleaned and exhausted in the dust removing sleeve 6 and dust generated by cleaning, so that the surface of the forging stock wire rod is kept clean, the pollution to lubricating oil in the forging stock wire rod processing process is reduced, and the abrasion to a cold heading die is reduced;
step six: and (3) guiding the treated forging stock wire rod of the powder removing box 2 into a cold header 1, and sequentially carrying out blanking, heading, accumulation, forming, chamfering, thread rolling, hole shrinkage and edge cutting on the forging stock through the cold header 1 to obtain the high-quality thin-wall hollow positioning pin.
Example 2
As shown in fig. 1-7, a cold heading forming device for a thin-wall hollow positioning pin comprises a cold heading machine 1 and a powder removing box 2, and further comprises a steel pipe 4, a dust removing sleeve 6, a dust collecting pipe 18 and a metal rod 14, wherein the powder removing box 2 is assembled at the feed end of the cold heading machine 1 through bolts, the top inside the powder removing box 2 is separated into a cleaning chamber 24 through steel plate welding, the metal rod 14 is positioned at the bottom inside the cleaning chamber 24, the dust collecting pipe 18 is arranged at the top inside the cleaning chamber 24, the dust removing sleeve 6 is sequentially arranged inside the cleaning chamber 24, one end of the dust removing sleeve 6 is provided with a plug 7, the dust removing sleeve 6 is connected with one end of the steel pipe 4 through the plug 7 in an inserting manner, one end of the steel pipe 4 and the plug 7 are both provided with corresponding first bolt holes 12, the steel pipe 4 is connected with the first bolt holes 12 of the plug 7 through bolt mounting, the other end inside the dust removing sleeve 6 is provided with a replacing groove 9, an inner sleeve 8 is inserted into the replacement groove 9, and the inner wall of the inner sleeve 8 is provided with an annular steel wire brush 10 through bolt nails.
The dust collecting pipe 18 is connected with the cleaning chamber 24 through a bolt in an installing mode, the U-shaped dust collecting pipes 19 are respectively connected with the bottoms of the dust collecting pipes 18 in a welding mode, dust inlet holes 23 are formed in the inner sides of the U-shaped dust collecting pipes 19 in a distributed mode, the number of the U-shaped dust collecting pipes 19 corresponds to the number of the dust removing sleeves 6, the U-shaped dust collecting pipes 19 are arranged at the discharge ends of the dust removing sleeves 6, through the U-shaped shapes of the U-shaped dust collecting pipes 19, forged blank wires can well penetrate through the U-shaped dust collecting pipes 19, and good dust collecting processing can be conducted on the dust inlet holes 23 in the inner walls of the U-shaped dust collecting pipes 19.
The dust removing box 2 is characterized in that a dust collector 20 is mounted at the bottom in the dust removing box 2 through bolts, a dust suction pipe 22 is connected to a dust inlet end of the dust collector 20, and a cleaning chamber 24 is arranged at the bottom of the dust suction pipe 22 in a penetrating mode and is connected with one side of the dust collecting pipe 18 through a flange in an installing mode.
The cleaning device comprises a cleaning chamber 24, a metal rod 14, first bearings 5, second bearings 26, first tooth sleeves 13, second gear sleeves 15, first chains 28 and a chain, wherein the first bearings 5 are sleeved and welded on the periphery of the other ends of the steel tubes 4, the supporting plates 3 corresponding to the steel tubes 4 are welded on the bottom of the cleaning chamber 24 in sequence, the outer shaft sleeves of the first bearings 5 are inserted and welded with the supporting plates 3, the first tooth sleeves 13 are sleeved and welded on the periphery of one end of the dust removing sleeve 6, the metal rod 14 is inserted on the bottom of the supporting plates 3 in sequence, the second bearings 26 corresponding to the supporting plates 3 are sleeved on the periphery of the metal rod 14 respectively, the inner shaft sleeves of the second bearings 26 are welded with the metal rod 14, the outer shaft sleeves of the second bearings 26 are welded with the supporting plates 3 at corresponding positions, the second tooth sleeves 15 corresponding to the first tooth sleeves 13 are sleeved and welded; the second bearing 26 may facilitate the smooth rotation of the metal rod 14 at the bottom of the support plate 3, and the first bearing 5 may facilitate the smooth rotation of the steel pipe 4 at the top of the support plate 3.
A motor 21 is installed in the powder removing box 2 and at the bottom of the cleaning chamber 24 through a bolt, corresponding toothed shafts 16 are welded at one end of the metal rod 14 and the driving end of the motor 21, and the metal rod 14 and the toothed shafts 16 of the motor 21 are connected in a sleeved mode through a synchronous belt 17; the timing belt 17 can drive the metal rod 14 and the gear shaft 16 of the motor 21 to synchronously rotate.
Corresponding second bolt holes 11 are distributed in one end of the replacement groove 9 and the inner sleeve 8, and the inner sleeve 8 is connected with the second bolt holes 11 of the replacement groove 9 through bolts; through the setting of second bolt hole 11, can help personnel to carry out nimble bolt dismantlement between inner sleeve 8 and the change groove 9 and wear to join in marriage, help the better equipment of personnel.
An access cover 25 corresponding to the cleaning chamber 24 is mounted at the top of the powder removing box 2 through a hinge, a sealing strip is glued at the covering position of the access cover 25, and material penetrating holes 27 are respectively formed in two ends of the cleaning chamber 24 of the powder removing box 2 in a penetrating mode; the access cover 25 is convenient for personnel to open the cleaning chamber 24 of the powder removing box 2 for maintenance.
A forming method of a cold heading forming device of a thin-wall hollow positioning pin is characterized in that: the method comprises the following processing steps:
the method comprises the following steps: taking a forging stock wire material required by processing the thin-wall hollow positioning pin, firstly inserting the forging stock wire material into a cleaning chamber 24 of the powder removing box 2 through a material penetrating hole 27, sequentially passing through an annular steel wire brush 10 and a U-shaped dust suction pipe 19 in a dust removing sleeve 6, and cleaning the forging stock passing through the dust removing sleeve 6 through friction by the annular steel wire brush 10;
step two: selecting a dust removal sleeve 6 with the inner diameter corresponding to the forging stock wire rod to be processed, inserting a plug-in connector 7 of the dust removal sleeve 6 into one end of the steel pipe 4, installing and fixing the plug-in connector 7 and a first bolt hole 12 of the steel pipe 4 through a bolt, wherein the inner diameter of the dust removal sleeve 6 is 0.2cm larger than the diameter of the forging stock wire rod;
step three: the motor 21 is started, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 is driven to rotate by the rotation of the gear shaft 16 of the motor 21, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 rotates synchronously, the first gear sleeve 13 of the dust removing sleeve 6 is driven to rotate by the chain 28 sleeved on the second gear sleeve 15 of the metal rod 14, so that the first gear sleeve 13 rotates along with the first gear sleeve, after the dust removing sleeve 6 rotates, the annular steel wire brush 10 in the inner sleeve 8 in the dust removing sleeve 6 can effectively brush the forging blank wire passing through the dust removing sleeve 6, so that the wire drawing powder, the saponification powder, foreign matters and the like generated by the wire drawing on the surface of the forging blank wire can be brushed, and the annular steel wire brush 10 can brush the surface of the passing wire in 360 degrees by the rotation of the inner sleeve 8;
step four: after the annular steel wire brush 10 cleans the forging stock wires of 2000m, the inner sleeve 8 in the dust removing sleeve 6 is disassembled, and the inner sleeve 8 with a new annular steel wire brush 10 is replaced, so that the inside of the dust removing sleeve 6 can keep a good cleaning effect;
step five: when the annular steel wire brush 10 starts to be cleaned, the dust collector 20 is started to work, the dust collector 20 exhausts the dust collecting pipe 18 through the dust exhausting pipe 22, so that the dust collecting pipe 18 exhausts the U-shaped dust collecting pipe 19, and the dust inlet hole 23 of the U-shaped dust collecting pipe 19 can effectively suck the surface of the wire rod which is cleaned and exhausted in the dust removing sleeve 6 and dust generated by cleaning, so that the surface of the forging stock wire rod is kept clean, the pollution to lubricating oil in the forging stock wire rod processing process is reduced, and the abrasion to a cold heading die is reduced;
step six: and (3) guiding the treated forging stock wire rod of the powder removing box 2 into a cold header 1, and sequentially carrying out blanking, heading, accumulation, forming, chamfering, thread rolling, hole shrinkage and edge cutting on the forging stock through the cold header 1 to obtain the high-quality thin-wall hollow positioning pin.
The working principle and the using process of the invention are as follows: taking a forging stock wire material required by processing the thin-wall hollow positioning pin, firstly inserting the forging stock wire material into a cleaning chamber 24 of the powder removing box 2 through a material penetrating hole 27, sequentially passing through an annular steel wire brush 10 and a U-shaped dust suction pipe 19 in a dust removing sleeve 6, and cleaning the forging stock passing through the dust removing sleeve 6 through friction by the annular steel wire brush 10; selecting a dust removal sleeve 6 with the inner diameter corresponding to the forging stock wire rod to be processed, inserting a plug-in connector 7 of the dust removal sleeve 6 into one end of the steel pipe 4, and installing and fixing the plug-in connector 7 and a first bolt hole 12 of the steel pipe 4 through a bolt; the motor 21 is started, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 is driven to rotate by the rotation of the gear shaft 16 of the motor 21, the gear shaft 16 of the metal rod 14 connected with the synchronous belt 17 rotates synchronously, the first gear sleeve 13 of the dust removing sleeve 6 is driven to rotate by the chain 28 sleeved on the second gear sleeve 15 of the metal rod 14, so that the first gear sleeve 13 rotates along with the first gear sleeve, after the dust removing sleeve 6 rotates, the annular steel wire brush 10 in the inner sleeve 8 in the dust removing sleeve 6 can effectively brush the forging blank wire passing through the dust removing sleeve 6, so that the wire drawing powder, the saponification powder, foreign matters and the like generated by the wire drawing on the surface of the forging blank wire can be brushed, and the annular steel wire brush 10 can brush the surface of the passing wire in 360 degrees by the rotation of the inner sleeve 8; after the annular steel wire brush 10 cleans the forging stock wires of 1000-2000m, the inner sleeve 8 in the dust removing sleeve 6 is disassembled, and the inner sleeve 8 with a new annular steel wire brush 10 is replaced, so that the inside of the dust removing sleeve 6 can keep a good cleaning effect; when the annular steel wire brush 10 starts to be cleaned, the dust collector 20 is started to work, the dust collector 20 exhausts the dust collecting pipe 18 through the dust exhausting pipe 22, so that the dust collecting pipe 18 exhausts the U-shaped dust collecting pipe 19, and the dust inlet hole 23 of the U-shaped dust collecting pipe 19 can effectively suck the surface of the wire rod which is cleaned and exhausted in the dust removing sleeve 6 and dust generated by cleaning, so that the surface of the forging stock wire rod is kept clean, the pollution to lubricating oil in the forging stock wire rod processing process is reduced, and the abrasion to a cold heading die is reduced; the method comprises the steps of guiding the treated forging stock wire rod of the powder removing box 2 into the cold header 1, and sequentially carrying out material cutting, heading, accumulation, forming, chamfering, thread rolling, hole reducing and edge cutting treatment on the forging stock through the cold header 1 to obtain the high-quality thin-wall hollow positioning pin, is stable and efficient in use, can be used for preprocessing the surface of the forging stock of the thin-wall hollow positioning pin, enables the forming effect of the forging stock during cold heading to be better, can be used for effectively cleaning metal dust and sticky foreign matters generated by wire drawing on the surface of the forging stock wire rod, further ensures that the forging stock cannot cause large pollution to lubricating oil when the forging stock is subjected to cold heading, greatly improves the recycling times of the lubricating oil, achieves a good saving effect and greatly reduces the processing cost, and can be used for effectively cleaning and removing the dust and the foreign matters generated by cleaning the surface of the forging stock through a powder suction mechanism consisting of the U-shaped dust collection pipe 19, the dust collection pipe 18 and the dust collector 20, the friction of a forging blank to a cold heading die can be effectively reduced, the service life of the die is prolonged, the maintenance cost of personnel to the cold heading machine is reduced, and a good energy-saving effect is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A cold heading forming device of a thin-wall hollow positioning pin comprises a cold heading machine (1) and a powder removing box (2), and is characterized by further comprising a steel pipe (4), a dust removing sleeve (6), a dust collecting pipe (18) and a metal rod (14), wherein the powder removing box (2) is assembled at the feed end of the cold heading machine (1) through bolts, a cleaning chamber (24) is separated at the inner top of the powder removing box (2) through steel plate welding, the metal rod (14) is positioned at the inner bottom of the cleaning chamber (24), the dust collecting pipe (18) is arranged at the inner top of the cleaning chamber (24), a dust removing sleeve (6) is sequentially arranged in the cleaning chamber (24), one end of the dust removing sleeve (6) is provided with a plug-in connector (7), the dust removing sleeve (6) is in plug-in connection with one end of the steel pipe (4) through the plug-in connector (7), one end of the steel pipe (4) and the plug-in connector (7) are both provided with corresponding first bolt holes (12), the steel pipe (4) is connected with a first bolt hole (12) of the plug connector (7) through a bolt in an installing mode, a replacing groove (9) is formed in the other end of the dust removing sleeve (6), an inner sleeve (8) is inserted into the replacing groove (9), and an annular steel wire brush (10) is arranged on the inner wall of the inner sleeve (8) through a bolt nail.
2. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: still include U type dust absorption pipe (19), dust collection pipe (18) are through bolt and scrubbing room (24) erection joint, U type dust absorption pipe (19) welded connection respectively and dust collection pipe (18) bottom, dust inlet hole (23) have been seted up in U type dust absorption pipe (19) inboard distribution, the quantity of U type dust absorption pipe (19) is corresponding with the quantity of dust removal cover (6), the discharge end of dust removal cover (6) is laid in U type dust absorption pipe (19).
3. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: remove dust catcher (20) installed through the bolt in powder case (2) bottom, the dust inlet end of dust catcher (20) is connected with and takes out dirt pipe (22), take out dirt pipe (22) bottom and wear to establish clean room (24) and dust collecting pipe (18) one side and pass through flange erection joint.
4. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: the steel pipe cleaning device is characterized in that a first bearing (5) is sleeved and welded on the periphery of the other end of the steel pipe (4), supporting plates (3) corresponding to the steel pipe (4) are welded on the bottom of a cleaning chamber (24) in sequence, an outer shaft sleeve of the first bearing (5) is inserted into and welded with the supporting plates (3), a first gear sleeve (13) is sleeved and welded on the periphery of one end of a dust removing sleeve (6), a metal rod (14) is inserted into the bottom of the supporting plates (3) in sequence, second bearings (26) corresponding to the supporting plates (3) are respectively sleeved on the periphery of the metal rod (14), an inner shaft sleeve of each second bearing (26) is welded with the metal rod (14), an outer shaft sleeve of each second bearing (26) is welded with the corresponding supporting plates (3), and second gear sleeves (15) corresponding to the first gear sleeves (13) are welded on the metal rod (14) in a distributed sleeved and welded mode, the first gear sleeve (13) is sleeved and connected with the second gear sleeve (15) through a chain (28).
5. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: remove in powder case (2) and be located clean room (24) bottom and install motor (21) through the bolt, corresponding tooth axle (16) have all been welded to the drive end of metal pole (14) one end and motor (21), establish the connection through hold-in range (17) cover between tooth axle (16) of metal pole (14) and motor (21).
6. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: and corresponding second bolt holes (11) are distributed in one end of the replacement groove (9) and the inner sleeve (8), and the inner sleeve (8) is connected with the second bolt holes (11) of the replacement groove (9) through bolts.
7. The cold heading forming device for the thin-wall hollow positioning pin as claimed in claim 1, wherein: the top of the powder removing box (2) is provided with an access cover (25) corresponding to the cleaning chamber (24) through a hinge, a sealing strip is arranged at the cover closing position of the access cover (25), and two ends of the cleaning chamber (24) of the powder removing box (2) are respectively penetrated and provided with a material penetrating hole (27).
8. A forming method of a cold heading forming device of a thin-wall hollow positioning pin is characterized in that: the method comprises the following processing steps:
the method comprises the following steps: taking a forging stock wire material required by processing the thin-wall hollow positioning pin, firstly inserting the forging stock wire material into a cleaning chamber (24) of a powder removing box (2) through a material penetrating hole (27), sequentially passing through an annular steel wire brush (10) and a U-shaped dust suction pipe (19) in a dust removing sleeve (6), and cleaning the forging stock passing through the dust removing sleeve (6) through friction by the annular steel wire brush (10);
step two: selecting a dust removal sleeve (6) with the inner diameter corresponding to the forging stock wire rod to be processed, inserting a plug connector (7) of the dust removal sleeve (6) into one end of the steel pipe (4), and installing and fixing the plug connector (7) and a first bolt hole (12) of the steel pipe (4) through a bolt;
step three: the motor (21) is started, the rotation of a gear shaft (16) of the motor (21) drives a synchronous belt (17) to transmit, so that a gear shaft (16) of a metal rod (14) connected with a synchronous belt (17) synchronously rotates, the chain (28) sleeved on the second gear sleeve (15) of the metal rod (14) drives the first gear sleeve (13) of the dust removing sleeve (6) to rotate, so that the first gear sleeve (13) rotates along with the first gear sleeve, after the dust removing sleeve (6) rotates, the annular steel wire brush (10) is arranged in the inner sleeve (8) in the dust removing sleeve (6), the forging stock wire passing through the dust removing sleeve (6) can be effectively cleaned by rotating, wire drawing powder, saponification powder, foreign matters and the like generated by wire drawing on the surface of the forging stock wire are brushed, and the annular steel wire brush (10) can brush the surface of the passing wire by 360 degrees by utilizing the rotation of the inner sleeve (8);
step four: after the annular steel wire brush (10) cleans the forging stock wires of 1000-2000m, the inner sleeve (8) in the dust removing sleeve (6) is disassembled, and the inner sleeve (8) with a new annular steel wire brush (10) is replaced, so that the inside of the dust removing sleeve (6) can keep a good cleaning effect;
step five: when the annular steel wire brush (10) starts to be cleaned, the dust collector (20) is started to work, and the dust collector (20) exhausts the dust collecting pipe (18) through the dust exhausting pipe (22), so that the dust collecting pipe (18) exhausts the U-shaped dust collecting pipe (19), and the dust inlet hole (23) of the U-shaped dust collecting pipe (19) can effectively suck the wire rod surface after cleaning and brushing in the dust collecting sleeve (6) and dust generated by cleaning and brushing, so that the surface of the forging stock wire rod is kept clean, the pollution to lubricating oil in the forging stock wire rod processing process is reduced, and the abrasion to a cold heading die is reduced;
step six: and (3) guiding the powder removing box (2) and the processed forging stock wire rod into a cold header (1), and sequentially carrying out blanking, heading, accumulating, forming, chamfering, thread rolling, reducing and edge cutting on the forging stock through the cold header (1) to obtain the high-quality thin-wall hollow positioning pin.
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| CN202110344945.5A CN113102664B (en) | 2021-03-31 | 2021-03-31 | Cold heading forming device and forming method of thin-wall hollow positioning pin |
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Cited By (1)
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| CN117900368A (en) * | 2024-03-18 | 2024-04-19 | 常州博帝汽车零部件有限公司 | Cold heading module for flange sleeve machining and cold heading process thereof |
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